RU2013114511A - METHOD OF REFINING SILVER - Google Patents
METHOD OF REFINING SILVER Download PDFInfo
- Publication number
- RU2013114511A RU2013114511A RU2013114511/02A RU2013114511A RU2013114511A RU 2013114511 A RU2013114511 A RU 2013114511A RU 2013114511/02 A RU2013114511/02 A RU 2013114511/02A RU 2013114511 A RU2013114511 A RU 2013114511A RU 2013114511 A RU2013114511 A RU 2013114511A
- Authority
- RU
- Russia
- Prior art keywords
- silver
- solution
- mother liquor
- chloride
- precipitation
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
1. Способ аффинажа серебра, включающий растворение исходного сырья в азотной кислоте в присутствии ионов аммония, стадийное выделение из раствора примесей и получение чистого серебра из очищенного раствора, отличающийся тем, что в очищенный раствор добавляют раствор соляной кислоты в количестве, обеспечивающем остаточное содержание серебра в маточном растворе 1-3 г/л, отделяют хлорид серебра от маточного раствора осаждения, хлорид серебра перемешивают в водном растворе спирта и добавляют раствор сахара с получением металлического серебра и маточного раствора восстановления, причем маточный раствор осаждения хлорида серебра направляют на растворение исходного сырья, а маточный раствор восстановления серебра направляют на осаждение хлорида.2. Способ по п.1, отличающийся тем, что хлорид серебра перемешивают в растворе, содержащем 15-20% этилового спирта, а для восстановления серебра добавляют сахарный сироп, содержащий 70-90% сахара, причем восстановление серебра ведут при температуре 50-70°C.1. A method for refining silver, including dissolving the feedstock in nitric acid in the presence of ammonium ions, stepwise separation of impurities from the solution and obtaining pure silver from a purified solution, characterized in that a solution of hydrochloric acid is added to the purified solution in an amount that provides a residual silver content in mother liquor 1-3 g / l, silver chloride is separated from the precipitation mother liquor, silver chloride is stirred in an aqueous alcohol solution and sugar solution is added to obtain metallic silver and a reduction mother liquor, and the silver chloride precipitation mother liquor is directed to dissolve the feedstock, and the mother liquor of silver reduction is directed to chloride precipitation. 2. The method according to claim 1, characterized in that silver chloride is mixed in a solution containing 15-20% ethyl alcohol, and sugar syrup containing 70-90% sugar is added to restore silver, and silver is reduced at a temperature of 50-70 ° C ...
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2013114511/02A RU2535266C2 (en) | 2013-04-01 | 2013-04-01 | Silver refining method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2013114511/02A RU2535266C2 (en) | 2013-04-01 | 2013-04-01 | Silver refining method |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2013114511A true RU2013114511A (en) | 2014-10-10 |
RU2535266C2 RU2535266C2 (en) | 2014-12-10 |
Family
ID=53286005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2013114511/02A RU2535266C2 (en) | 2013-04-01 | 2013-04-01 | Silver refining method |
Country Status (1)
Country | Link |
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RU (1) | RU2535266C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105886778A (en) * | 2016-05-16 | 2016-08-24 | 衢州学院 | Metal extracting method for waste electronic product |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4753782A (en) * | 1983-09-26 | 1988-06-28 | Gte Products Corporation | Cemented silver powder |
GB2236116A (en) * | 1989-09-20 | 1991-03-27 | Shell Int Research | Nodular silver powder and process for preparing silver powder |
EP0465401A1 (en) * | 1990-03-23 | 1992-01-08 | Spac S.A. | Apparatus for recovering silver or other precious metals dissolved in a liquid |
US5413617A (en) * | 1993-09-13 | 1995-05-09 | National Science Council | Process for the preparation of silver powder with a controlled surface area by reduction reaction |
RU2100457C1 (en) * | 1995-08-15 | 1997-12-27 | Акционерное общество "Иргиредмет" | Silver affinage method |
RU2100484C1 (en) * | 1996-02-14 | 1997-12-27 | Акционерное общество открытого типа "Уралэлектромедь" | Process of winning of silver from its alloys |
RU2421529C1 (en) * | 2010-02-24 | 2011-06-20 | Открытое акционерное общество "Красноярский завод цветных металлов имени В.Н. Гулидова" (ОАО "Красцветмет") | Procedure for production of refined silver |
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2013
- 2013-04-01 RU RU2013114511/02A patent/RU2535266C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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RU2535266C2 (en) | 2014-12-10 |
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Date | Code | Title | Description |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20150402 |